Facebook Drops Grooveshark

Grooveshark's struggles with legitimacy just took a turn for the worse. As of Saturday afternoon Facebook has severed ties (links?) to the service, meaning users can no longer sign in using a Facebook account or post listener data to their timeline. Evolver.fm also reports that Grooveshark's official page and app have been removed from Facebook.

Grooveshark's official statement seems to call the whole incident a temporary mistake on Facebook's part, but it's possible Zuckerberg might not agree with all of the pillars of Grooveshark's free music theory. Has anyone noticed a service interruption?